[FR] Bring back debug colors

[J013k]

I have noticed that recently the debug colors argument has been removed:
e88fbd7.

Is there a chance to add into some kind of a "disco" version?
I mean sometimes these debug colors may show where the problem might be.
E.g. at boot, the ISO might stuck at green color. It may be an incompatible USB device.
While without these colors I can only post: "It stucks at a black screen" without knowing if this a USB device problem or an ISO.

[rickgaiser]

Perhaps they will be re-introduced in a different form.

Besides showing a static state of where the program is, I would like to also add error codes. These can be encoded as flashing color. Like 5x blue = function 5 + 3x RED = error3.

I added something like this while debugging. No ETA on if/when they will return but I'll leave this FR open.